<template>
  <div>
    <el-row :gutter="10" style="margin-left: 5px; margin-top: 5px; margin-right: 5px">
      <el-row :gutter="5">
        <!--    分类信息-->
        <el-col :span="5">
          <el-card style="height: 1165px; overflow: auto">
            <div class="show_title">案卷类别：</div>
            <el-tree v-if="classList.length > 0" class="filter-tree" :data="classList"
              :props="{ label: 'className', children: 'children' }" :default-expand-all="false"
              :filter-node-method="filterNode" ref="tree" @node-click="handleNodeClick"
              style="margin-top: 10px"></el-tree>
            <!-- 无数据时的提示 -->
            <el-empty v-else description="暂无数据"></el-empty>
          </el-card>
        </el-col>
        <el-col :span="19">
          <el-row :gutter="5">
            <!--    工程信息-->
            <el-col :span="24">
              <el-card style="height: 400px" v-loading="engLoading">
                <div slot="header" class="search-header">
                  <div class="show_title">工程目录：</div>
                  <el-input v-model="engQueryParams.engname" placeholder="搜索工程" clearable @keyup.enter.native="searchEng"
                    class="my_input" />
                  <div class="button-group">
                    <el-button type="primary" icon="el-icon-search" size="mini" @click="searchEng">搜索</el-button>
                    <el-button icon="el-icon-refresh" size="mini" @click="resetEng">重置</el-button>
                  </div>
                </div>
                <div class="eng-container" ref="engsContainer">
                  <div class="eng-row" v-for="eng in engList" :key="eng.id" @click="selectEng(eng)"
                    :class="{ selected: eng === selectedEng }">
                    <i class="folder-icon eng-folder-icon"></i>
                    <span class="folder-name">{{ eng.engname }}</span>
                  </div>
                </div>
                <div class="pagination-container">
                  <!-- 分页信息 -->
                  <el-pagination @size-change="handleSizeChangeEng" @current-change="handleCurrentChangeEng"
                    :current-page.sync="engQueryParams.pageNum" :page-size.sync="engQueryParams.pageSize"
                    layout="total, sizes, prev, pager, next, jumper" :total="engTotal"></el-pagination>
                </div>
              </el-card>
            </el-col >
            <!--    案卷信息-->
            <el-col :span="16" style="margin-top: 5px">
              <el-card style="height: 760px" v-loading="volumeLoading">
                <div slot="header" class="search-header">
                  <div class="show_title">案卷目录：</div>
                  <el-input v-model="volumeQueryParams.vname" placeholder="搜索案卷" clearable
                    @keyup.enter.native="searchVolume" class="my_input" />
                  <div class="button-group">
                    <el-button type="primary" icon="el-icon-search" size="mini" @click="searchVolume">搜索</el-button>
                    <el-button icon="el-icon-refresh" size="mini" @click="resetVolume">重置</el-button>
                  </div>
                </div>
                <div class="volume-container" ref="volumeContainer">
                  <div class="eng-row" v-for="volume in volumeList" :key="volume.id" @click="selectVolume(volume)"
                    :class="{ selected: volume === selectedVolume }">
                    <i class="folder-icon volume-folder-icon"></i>
                    <span class="folder-name">{{ volume.vname }}</span>
                  </div>
                </div>
                <div class="pagination-container">
                  <!-- 分页信息 -->
                  <el-pagination @size-change="handleSizeChangeVolume" @current-change="handleCurrentChangeVolume"
                    :current-page.sync="volumeQueryParams.pageNum" :page-size.sync="volumeQueryParams.pageSize"
                    layout="total, sizes, prev, pager, next, jumper" :total="volumeTotal"></el-pagination>
                </div>
              </el-card>
            </el-col>
            <!--    文件信息-->
            <el-col :span="8" style="margin-top: 5px">
              <el-card style="height: 760px" v-loading="fileLoading">
                <div slot="header" class="search-header">
                  <div class="show_title">文件列表：</div>
                  <el-input v-model="fileQueryParams.filename" placeholder="搜索文件" clearable
                    @keyup.enter.native="searchFile" class="my_input" />
                  <div class="button-group">
                    <el-button type="primary" icon="el-icon-search" size="mini" @click="searchFile">搜索</el-button>
                    <el-button icon="el-icon-refresh" size="mini" @click="resetFile">重置</el-button>
                  </div>
                </div>
                <div class="volume-container" ref="fileContainer">
                  <div class="eng-row" v-for="file in fileList" :key="file.id" @click="selectFile(file)"
                    @dblclick="openFile(file)" :class="{ selected: file === selectedFile }">
                    <i class="folder-icon file-folder-icon"></i>
                    <span class="folder-name">{{ file.filename }}</span>
                  </div>
                </div>
                <div class="pagination-container">
                  <!-- 分页信息 -->
                  <el-pagination @size-change="handleSizeChangeFile" @current-change="handleCurrentChangeFile"
                    :current-page.sync="fileQueryParams.pageNum" :page-size.sync="fileQueryParams.pageSize"
                    layout="total, sizes, prev, pager, next, jumper" :total="fileTotal"></el-pagination>
                </div>
              </el-card>
            </el-col>
          </el-row>
        </el-col>
      </el-row>


    </el-row>

    <el-row :gutter="10" style="margin-left: 5px; margin-top: 5px; margin-right: 5px">
      <el-card>
        <el-row v-if="currentInfo === 'eng'">
          <el-col :span="24">
            <eng-info :eng-info="selectedEng" @updateEngInfo="getEngList"></eng-info>
          </el-col>
        </el-row>

        <el-row v-else-if="currentInfo === 'volume'">
          <el-col :span="24">
            <volume-info :volume-info="selectedVolume" @updateVolumeInfo="getVolumeList"></volume-info>
          </el-col>
        </el-row>

        <el-row v-else-if="currentInfo === 'file'">
          <el-col :span="24">
            <file-info :file-info="selectedFile" @updateFileInfo="getFileList"></file-info>
          </el-col>
        </el-row>
      </el-card>
    </el-row>

    <!-- 文件显示弹窗 -->
    <el-dialog :visible.sync="pdfDialogVisible" title="文件详情" :width="dialogWidth" center>
      <embed :src="pdfUrl" type="application/pdf" width="100%" height="1000px" />
    </el-dialog>
    <el-dialog :visible.sync="imgDialogVisible" title="文件详情" :width="dialogWidth" center>
      <div class="dialog-content">
        <div class="my_button">
          <el-button icon="el-icon-download" type="success" @click="downloadFile">下载</el-button>
          <el-button icon="el-icon-printer" type="primary" @click="printFile">打印</el-button>
        </div>
      </div>
      <embed :src="blobImage" type="image/jpeg" width="100%" height="1000px" />
    </el-dialog>
  </div>
</template>

<script>
import { listEngInfo } from "@/api/system/enginfo";
import { listVolumeinfo } from "@/api/system/volumeinfo";
import { getPdf, getType, listFileInfo } from "@/api/system/fileinfo";
import EngInfo from "@/views/system/search/engInfo";
import VolumeInfo from "@/views/system/search/volumeInfo";
import FileInfo from "@/views/system/search/fileInfo";
// import { listClass } from "@/api/system/class";

export default {
  components: {
    EngInfo,
    VolumeInfo,
    FileInfo,
  },
  data() {
    return {
      // 类别表格数据
      classList: [],

      engList: [], //工程列表
      volumeList: [], //案卷列表
      fileList: [], //文件列表

      engTotal: 0, //工程总数
      volumeTotal: 0, //案卷总数
      fileTotal: 0, //文件总数

      selectedEng: null,
      selectedVolume: null,
      selectedFile: null,
      currentInfo: "eng",

      engQueryParams: {
        pageNum: 1,
        pageSize: 20,
        engInfoYuliu1: null,
        engname: null,
      },
      volumeQueryParams: {
        pageNum: 1,
        pageSize: 20,
        regprojid: null,
        vname: null,
      },
      fileQueryParams: {
        pageNum: 1,
        pageSize: 20,
        volumeid: null,
        filename: null,
      },

      engLoading: false,
      volumeLoading: false,
      fileLoading: false,

      blobImage: "", //图片url
      pdfUrl: "", // 存储PDF文件的URL地址
      pdfDialogVisible: false, // 控制弹窗的显示与隐藏
      imgDialogVisible: false, // 控制弹窗的显示与隐藏
      dialogWidth: "70%", // 弹窗的宽度
      dialogHeight: "80vh",
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询类别列表 */
    getList() {
      this.loading = true;
      listClass(this.queryParams)
        .then((response) => {
          this.classList = this.handleTree(
            response.data,
            "classId",
            "parentId"
          );
        })
        .finally(() => {
          this.loading = false;
        });
    },
    /** 过滤节点 */
    filterNode(value, data) {
      if (!value || !data.label) return true;
      return data.label.indexOf(value) !== -1;
    },
    /** 节点点击事件处理 */
    handleNodeClick(data) {
      // 递归查找所有最小类别节点
      const smallestClasses = this.findSmallestClasses(data);
      // 处理最小类别节点列表，例如打印或进行其他操作
      console.log("最小类别列表：", smallestClasses);
      if (smallestClasses.length === 1) {
        this.engQueryParams.engInfoYuliu1 = smallestClasses[0];
        this.getEngList();
      }
      // this.engQueryParams.engInfoYuliu1 = smallestClasses;
      // this.getEngList();
    },
    /** 递归查找最小类别节点 */
    findSmallestClasses(node) {
      if (!node || !node.children || node.children.length === 0) {
        // 如果节点为空或没有子节点，则当前节点为最小类别
        return [node.classId];
      }
      let smallestClasses = [];
      for (const child of node.children) {
        const childSmallestClasses = this.findSmallestClasses(child);
        smallestClasses = smallestClasses.concat(childSmallestClasses);
      }
      return smallestClasses;
    },
    //获取工程信息
    getEngList() {
      console.log(this.engQueryParams);
      this.engLoading = true;
      listEngInfo(this.engQueryParams)
        .then((response) => {
          setTimeout(() => {
            this.engList = response.rows;
            this.engTotal = response.total;
            this.engLoading = false;
          }, 300);
        })
        .catch((error) => {
          this.$message.error("获取工程信息失败:" + error);
          this.engLoading = false;
        });
    },
    searchEng() {
      this.engQueryParams.pageNum = 1;
      this.getEngList();
    },
    resetEng() {
      this.engQueryParams.engname = null;
      this.getEngList();
    },
    selectEng(eng) {
      this.selectedEng = eng;
      this.currentInfo = "eng";
      this.volumeQueryParams.regprojid = eng.id;
      // this.volumeQueryParams.regprojid = '20130101/6-41092158-2671-492c-8d0f-96082f95979d'
      this.getVolumeList();
    },
    downloadFile() {
      // 实现下载文件的逻辑
      const link = document.createElement("a");
      link.href = this.blobImage;
      link.download = "file.jpg";
      link.click();
    },
    printFile() {
      // 实现打印文件的逻辑
      const printWindow = window.open("", "_blank");
      printWindow.document.write(
        `<img src="${this.blobImage}" style="max-width: 100%; height: auto;">`
      );
      printWindow.document.close();
      printWindow.print();
    },
    handleSizeChangeEng(pageSize) {
      this.engQueryParams.pageSize = pageSize;
      this.getEngList();
    },
    handleCurrentChangeEng(currentPage) {
      this.engQueryParams.pageNum = currentPage;
      this.getEngList();
    },
    //获取案卷信息
    getVolumeList() {
      this.volumeLoading = true;
      this.fileList = [];
      listVolumeinfo(this.volumeQueryParams)
        .then((response) => {
          setTimeout(() => {
            this.volumeList = response.rows;
            this.volumeTotal = response.total;
            this.volumeLoading = false;
          }, 300);
        })
        .catch((error) => {
          this.$message.error("获取案卷信息失败:" + error);
          this.volumeLoading = false;
        });
    },
    searchVolume() {
      this.volumeQueryParams.pageNum = 1;
      this.getVolumeList();
    },
    resetVolume() {
      // this.volumeQueryParams.regprojid = null
      this.volumeQueryParams.vname = null;
      if (this.volumeQueryParams.regprojid != null) {
        this.getVolumeList();
      }
    },
    selectVolume(volume) {
      this.selectedVolume = volume;
      this.currentInfo = "volume";
      this.fileQueryParams.volumeid = volume.id;
      this.getFileList();
    },
    handleSizeChangeVolume(pageSize) {
      this.volumeQueryParams.pageSize = pageSize;
      this.getVolumeList();
    },
    handleCurrentChangeVolume(currentPage) {
      this.volumeQueryParams.pageNum = currentPage;
      this.getVolumeList();
    },
    //获取文件信息
    getFileList() {
      this.fileLoading = true;
      listFileInfo(this.fileQueryParams)
        .then((response) => {
          setTimeout(() => {
            this.fileList = response.rows;
            this.fileTotal = response.total;
            this.fileLoading = false;
          }, 300);
        })
        .catch((error) => {
          this.$message.error("获取文件信息失败:" + error);
          this.fileLoading = false;
        });
    },
    searchFile() {
      this.fileQueryParams.pageNum = 1;
      this.getFileList();
    },
    resetFile() {
      // this.fileQueryParams.volumeid = null
      this.fileQueryParams.filename = null;
      if (this.fileQueryParams.volumeid != null) {
        this.getFileList();
      }
    },
    selectFile(file) {
      this.selectedFile = file;
      this.currentInfo = "file";
    },
    // 双击文件名打开文件
    openFile(file) {
      getType(file).then((response) => {
        if (response.toString() === "pdf") {
          this.openPDF(file);
        } else if (response.toString() === "jpg") {
          this.openImg(file);
        }
      });
    },
    //打开图片
    openImg(file) {
      this.fileForm = file; // 将文件信息保存到fileForm中，以便在getPdf函数中使用
      getPdf(this.fileForm)
        .then((response) => {
          const blob = new Blob([response], { type: "image/jpeg" });
          this.blobImage = URL.createObjectURL(blob);
          this.imgDialogVisible = true; // 显示弹窗
        })
        .catch((error) => {
          console.error("获取图片时出错:", error);
          // 可以添加错误处理逻辑，比如显示一个错误提示框等
        });
    },
    //打开PDF
    openPDF(file) {
      this.fileForm = file; // 将文件信息保存到fileForm中，以便在getPdf函数中使用
      getPdf(this.fileForm)
        .then((response) => {
          const blob = new Blob([response], { type: "application/pdf" });
          this.pdfUrl = URL.createObjectURL(blob);
          this.pdfDialogVisible = true; // 显示弹窗
        })
        .catch((error) => {
          console.error("Error occurred while fetching the PDF:", error);
          // 可以添加错误处理逻辑，比如显示一个错误提示框等
        });
    },
    handleSizeChangeFile(pageSize) {
      this.fileQueryParams.pageSize = pageSize;
      this.getFileList();
    },
    handleCurrentChangeFile(currentPage) {
      this.fileQueryParams.pageNum = currentPage;
      this.getFileList();
    },
  },
};
</script>

<style>
/* 公共样式 */
.search-header {
  display: flex;
  align-items: center;
}

.my_input {
  margin-left: auto;
  width: 37%;
}

.dialog-content {
  display: flex;
  flex-direction: column;
}

.my_button {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 10px;
  margin-left: 85%;
}

.button-group {
  display: flex;
  justify-content: center;
  margin-top: 10px;
}

.eng-container {
  height: 240px;
  overflow-y: auto;
}

.volume-container {
  height: 600px;
  overflow-y: auto;
}

.eng-row {
  flex-basis: 100%;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.eng-row:hover {
  cursor: pointer;
  background-color: #e5f3ff;
}

.pagination-container {
  margin-top: 10px;
}

.folder-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-right: 5px;
  background-size: cover;
}

.folder-name {
  flex-grow: 1;
  font-size: 14px;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.show_title {
  font-weight: bold;
  font-size: 20px;
  color: rgb(26, 115, 198);
}

.dialog-content {
  display: flex;
  flex-direction: column;
}

.button-group {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

/* 不同图标的样式 */
.eng-folder-icon {
  background-image: url("~@/assets/icons/folder/eng-icon.png");
}

.volume-folder-icon {
  background-image: url("~@/assets/icons/folder/volume-icon.png");
}

.file-folder-icon {
  background-image: url("~@/assets/icons/folder/file-icon.png");
}

/* 选中状态的样式 */
.selected {
  /*box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);*/
  background-color: #cce8ff;
}
</style>

